ATLANTA, Georgia (CNN) -- Three children at a summer camp in northern Georgia have contracted swine flu and dozens more have been separated from other campers after showing signs of the flu, but all are recovering, authorities said Thursday.

About 60 campers and a few staffers at Camp Ramah Darom were separated from the rest and are being treated on the grounds, said Andrea Proser, a spokeswoman for the camp.

One child was hospitalized briefly, but most symptoms have been "mild to moderate" so far, she said.

Ramah Darom is a Jewish summer camp near Clayton, about 110 miles northeast of Atlanta. About 400 children, typically ages 9 to 16, are at the camp, along with about 200 counselors and staff, Proser said.

The first cases were reported Monday, said Dave Palmer, a spokesman for the Georgia Division of Public Health.

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He said a state laboratory confirmed samples from three children as the H1N1 virus, which has spread around the world since originating in Mexico in April.

"The camp has an on-site medical team and infirmary, and they treat them there at the camp," he said. "They have a building that is separate from the population of the camp, and those who are sick or ill are being separated from those who are well at the camp," he said.

Palmer said the state is monitoring suspected swine flu outbreaks at two other summer camps in Georgia.